L-threonine

Description

<br />Appearance of white light or pale crystalline powder identical<br />Assay dried and C4H9NO3 met 98.5 98.6<br />Specific optical rotation D20 -26.0 -29.0 degrees to -28 degrees<br />Loss on drying 1.0 max 0.1<br />Ignition residue in the extreme 0.5 0.1<br />Heavy metals lead 20ppm max 20ppm<br />As 2ppm Max 2ppm<br />Jump to the conclusion Corporation standard

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